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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-14734.907895
Energy at 298.15K 
HF Energy-14734.907895
Nuclear repulsion energy1215.971826
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at BLYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 580 577 181.40 8.46 0.24 0.38
2 A1 295 293 0.54 22.60 0.03 0.06
3 A1 182 181 0.00 13.20 0.31 0.48
4 A1 104 103 0.16 7.87 0.66 0.80
5 A2 139 138 0.00 6.06 0.75 0.86
6 B1 578 575 173.54 4.08 0.75 0.86
7 B1 174 173 0.04 9.92 0.75 0.86
8 B2 562 559 163.11 5.14 0.75 0.86
9 B2 209 208 0.70 10.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1411.3 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 1403.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at BLYP/3-21G
ABC
0.03497 0.01604 0.01401

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.619
Cl2 0.000 1.536 1.778
Cl3 0.000 -1.536 1.778
I4 1.869 0.000 -0.605
I5 -1.869 0.000 -0.605

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.92381.92382.23402.2340
Cl21.92383.07153.39543.3954
Cl31.92383.07153.39543.3954
I42.23403.39543.39543.7374
I52.23403.39543.39543.7374

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 105.933 Cl2 C1 I4 109.271
Cl2 C1 I5 109.271 Cl3 C1 I4 109.271
Cl3 C1 I5 109.271 I4 C1 I5 113.543
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.765      
2 Cl 0.082      
3 Cl 0.082      
4 I 0.300      
5 I 0.300      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.765 1.765
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -82.248 0.000 0.000
y 0.000 -89.813 0.000
z 0.000 0.000 -88.779
Traceless
 xyz
x 7.048 0.000 0.000
y 0.000 -4.299 0.000
z 0.000 0.000 -2.749
Polar
3z2-r2-5.498
x2-y27.565
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.947 0.000 0.000
y 0.000 8.775 0.000
z 0.000 0.000 10.727


<r2> (average value of r2) Å2
<r2> 653.222
(<r2>)1/2 25.558